Virtualization systems trend to have a massive amount of disks, both virtual and physical, often making difficult to distribute the load evenly across physical disks. Latency data like in the sample below can be easily summarized, but as the number of disks increases methods like spreadsheets or pivot tables are unpractical for an efficient analysis.
Sample Value "0" Timestamp "1499839200" MetricId "virtualdisk.totalreadlatency.average" Server "server1" Instance "scsi0:0" Disk_num "0" Disk "Hard disk 1" StorageFormat "Thick" DiskType "Flat" CapacityGB "22" Lun "LUN1" Lun_Cap_GB "2047.75" Lun_Free_GB "709.287109375"